os-k/boot/loader/cpu/cpu.inc

;=----------------------------------------------------------------------------=;
;                            GNU GPL OS/K                                      ;
;                                                                              ;
;   Desc:   Basic longmode CPU functions                                       ;
;                   (x86_64 architecture only)                                 ;
;                                                                              ;
;                                                                              ;
;   Copyright © 2018-2019 The OS/K Team                                        ;
;                                                                              ;
;   This file is part of OS/K.                                                 ;
;                                                                              ;
;   OS/K is free software: you can redistribute it and/or modify               ;
;   it under the terms of the GNU General Public License as published by       ;
;   the Free Software Foundation, either version 3 of the License, or          ;
;   (at your option) any later version.                                        ;
;                                                                              ;
;   OS/K is distributed in the hope that it will be useful,                    ;
;   but WITHOUT ANY WARRANTY; without even the implied warranty of             ;
;   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              ;
;   GNU General Public License for more details.                               ;
;                                                                              ;
;   You should have received a copy of the GNU General Public License          ;
;   along with OS/K.  If not, see <https://www.gnu.org/licenses/>.             ;
;=----------------------------------------------------------------------------=;

[global temporize]
[global bitemporize]
[global tritemporize]

[BITS 64]

temporize:
    push rcx
    mov rcx, 2000
.looping:
    nop
    nop
    nop
    loop .looping
    pop rcx
    ret

bitemporize:
    push rcx
    mov rcx, 2000
.looping:
    call temporize
    loop .looping
    pop rcx
    ret

tritemporize:
    push rcx
    mov rcx, 20
.looping:
    push rcx
    call bitemporize
    pop rcx
    loop .looping
    pop rcx
    ret


; ---------------------------------------------------------------------------- ;
;    Returns the CPU Vendor String.pointer in eax                              ;
; ---------------------------------------------------------------------------- ;
cpu_vendor:

    ;; Calling the competent authorities
    mov eax, 0
    cpuid

    ret
.string db "            "